Pump



April 14, 1925.

B'. F. MARTY PUMP Filed Nov. 20, 1922 2 Sheets-Sheet l Patented Apr. 14, 1925.

UNITED STATES BENJAMIN FRANKLIN MARTY, F FRIANT, CALIFORNIA, ASSIGNOR OF TWO-THIRDS TO ELIZABETH DONAGHY,

0F ONEALS, CALIFORNIA. i

PUMP.

Application nieu November 2o, 1922. serial No. 602,168.

To all whom it may concern.'

Be it known that I, BENJAMIN FRANKLIN MARTY, a citizen of the United States, rcsiding in Friant, Fresno County, and State of California, have invented a new and useful Improvement in a Pump, of which the following is a specification.

My invention relates to improvements in pumps wherein a reciprocating plunger operates to force liquid upwardly through a casing.

The primary object of my invention is to provide an improved pump of the character described.

Another object is to provide a pump of simple and durable construction especially adapted to be used in wells for drawing in water and for forcing the same in an upward direction as the pump is in operation.

A further object is to provide a novel and improved arrangement of the parts of the pump whereby the liquid may be; elevated from well of maximum depth and with the expenditure of minimum amount of power for operating the pump.

A still further object is to provide an improved construction which may be easily assembled and installed and which will give a maximum eiiciency.

I accomplish these and other objects by means of the device disclosed in the drawings forming a part of the present specification wherein like characters of reference are used to designate similar parts throughout said specification and drawings, and in which:

Fig. 1 is a vertical section of the pump.

Fig. 2 is a similar view showing the plunger in elevation during a different portion of the stroke.

Fig. 3 isa transverse section taken upon the line 3--3 of Fig. 2.

Fig. 4 is a vertical section of the lower end of the pump casing showing a modified form of the valve arrangement.

Fig. 5 is a transverse section taken upon the line 5-5 of Fig. 4.-.

Fig. 6 is a broken side elevation partly in section showing the upper portion of a modified construction.

Fig. 7 is a transverse section taken upon the line 7 7 of Fig. 6. i

Referring to the drawings the pump will be seen to comprise essentially a casing 1 adapted to fit snugly into a well casing, not

shown, and provided with a diametrically Y reduced portion 2. A cylinder 3 is concentrically positioned within the reduced portion of the casing and extends outwardly through the lower end thereof. The lower end of the cylinder 3 terminates in an enlarged sleeve which is engaged by a flange 4 formed upon the lower end of the casing 1.

An interior conical seat 6 .is formed within the lower end cf the cylinder 3 to receive a valve structure Which comprises a base member 7 engaging the seat 6 and a cage 8 screwed onto a nipple 9 with which the base member is provided. The cage 8 Vis provided with spaced wall sections 11, and has a threaded nipple 12 formed upon the upper end thereof. The cage is arranged to engage a packing ring 13 and press the same against the base member 7 and the inner side of the cylinder 3 when mounted in operative position upon the nipple 9. n

A valve seat 14 is formed upon the upper end of the nipple 9 to receive a ball 16 mounted within the cage 8 and arranged to operate in the usual V`manner as a ball valve vfor opening and closing the passage through the base member 7. Openings 17 are formed in the cylinder 3 adjacent the cage for 'admitting water into the casing in a manner hereinafter more fully described. y

A shoulder 18 4is formed between theiupper and lower portions 1 and 2 of the casing to receive an annulus 19 having a plurality of openings 21 formed therein to communicate with the space between the casing and the cylinder 3. The openings 21 are arranged to receive balls 22 mounted within cages 23 and seating upon said openings.

A plunger 25 is mounted within the cylinder 3, said plunger being formed from upper and lower plunger sections 26 and 27, the upper section 26 being provided with an interiorly threaded end of a reduced extension 29 formed upon the lower plunger section 27. Suction cups 31l are mounted upon the reduced extension 29 and held in spaced relation by suitable rings 32 as best illustrated in Fig. 1 of the drawings.

The lower plunger section 27 is provided with an internally threaded socket 33 ar ranged to receive the threaded nipple 12 of the cage 8 when it is desired to remove the valve structure from the well.

A tubular plunger rod 34- is threaded into the upper portion ofthe plunger for actuating the same within the cylinder 3, said rodv34 being introduced into the top of the cylinder through a suitable stutiing gland 35 mounted upon the annulus 19 and arranged to exclude water from the upper ortion of the cylinderabove the plunger..

vided 'upon the lower end of the casing below the seat 37 and externally threaded to receive a pipe section, not shown, extending downwardly to a lower point within the well. The cylinder is internally threaded to receive a housing 41 provided with an opening therethrough and having a sea-t 42 formed therein to receive a ball 43. l A threaded extension 44 isformed upon the upper end of the housing to correspond to the nipple 12 formed upon the cage 8 above descr-ibed. Openings 46 are formed through the .cylinder immediately above the housing 41 to admit water from the cylinder into the casing when the pump is in operation.

Fig. 6 shows a modification of the pump wherein the plunger extends outwardly through the top of the cylinder 3 rather than being enclosed therein by the stuing gland 35, above described. In this construction the cylinder is open at the top and the plunger is made to fit snugly therein.

In operation my invention is as follows: The pump being assembled into the well with the lower end of the pump submerged into .the rwater, the plunger is reciprocated by any suitable means. During the up stroke of the piston, water is'drawn through the bottom of the pump past lthe ball valve mounted within the cage 8 or housing 41 into the cylinder 3 as shown in Fig. 1. When the plunger has reached its highest point, gravity and the pressure of the water will cause the ball to become seated and thus check the flow of water back into the well. As `the plunger now descends the water within the cylinder 3 will be. forced through the openings 17 or 46 into the casing and thence upwardly through the openings 21 past the balls 22 which are displaced by the pressure of the water. as shown in Fig. 2 of the drawings.. In the preferred form of the invention shown in Figs. 1 and 2, the plunger is entirely enclosed Within the cylinder, water ybeing excluded therefrom by the stuing gland 35. This construction reduces to a minimum the resistance to the upward movement .of the plunger as no water is displaced above the piston by the upward movement thereof. The openings 36 in the rod 34, while primarily provided asa means ofA introducing lubricant to the plunger, provide Vents permitting liquid to be forced outwardly through the rod in event an appreciable leakage should occur past the stuffing gland 35 or past the plunger. The expelling of water through the rod will serve to indicate that the pump should be withdrawn from the well' and attention given t0 the stuffing gland and the plunger rings in order to maintain a maximum efiiciency. The plunger and valve mechanism may be readily withdrawn fro' the well for repair by screwing the plunger into engagement with the nipple 12.`

The arrangement shown in the drawings forms a. rugged and durable construction which may be readily assembled and placed in operation.

The provision of the annulus 19 and the ball valve mechanism associated therewith lforms a simple and effective means of preventing the return of the water into the lower portion of the well after once being lifted by the action of the plunger. In this manner a maximum pressure may be obtained during the downward stroke of the plunger which will result in an increased lifting power for elevating the water to the top of the well. At the same time the pressure against the piston during the up stroke is reduced, to a minimum and the energy consumed during the up stroke will be almost wholly utilized in sucking water into the cylinder 3 past the ball 16.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. A pump comprising a casing having a reduced lower portion; a shoulder formed at the upper end of the reduced portion and a fiange formed at the lower .end of said reduced portion; an annulus mounted. within the casing upon the shoulder; a cylinder mounted within the casing in engagement with the flange and the annulus valve means removably mounted within the lower-portion of the cylinder to form an intake to the cylinder andthence tothe casing through openings formed in the cylinder above the valve means; al plunger mounted within the cylinder; and means for reciprocating the plunger within the cylinder to draw liquid into the cylinder when moved in one direction, and to force said liquid into the casing and upwardly past the valve controlled opening in the annulus when moved in the the casing upon the shoulder; a cylinder ISU mounted within the casing in engagement with the flange and the annulus; valve means removably mounted within the lower portion of the cylinder to form an intake to the cylinder' and thence tothe casing through openings formed in the cylinder above the valve means; a plunger mounted within the cylinder; and means for reciprocating the plunger within the cylinder to draw liquid into the cylinder when moved in one direction, and to force said liquid into the casing and upwardly past the valve controlled opening in the annulus when moved in the opposite direction; and means for excluding water from the upper portion of the cylinder.

3. A pump comprising a casing havinga diametrically reduced lower end section with a shoulder formed at the upper end of said section; a cylinder mounted in the section and extending through the lower end thereof; a flange formed upon the lower end of the casing section to firmly engage the cylinder, said cylinder having its lower end enlarged to engage the flange and being provided with openings communicating with the casing section above said flange; a Aseat formed within the lower end of the cylinder; a valve housing base resting upon said seat; a cage engaging the base; a ball mounted within the cage and arranged to engage the seat formed upon the base member; an annulus mounted upon the upper 'end of the cylinder and bearing aty its edges upon the shoulder at the upper end of the reduced casing section, said annulus having valve controlled openings communicating'between the upper and lower portions of the casing; and a plunger mounted for reciprocating movement within the cylinder.

4. A pump comprising a casing having a diametrically reduced lower end section with a shoulder formed at'tlie upper end of said section; a cylinder mounted in the section and extending through the lower end thereof; a flange formed upon the lower end of the casing section to firmly engage the cylinder, said cylinder having its lower end enlarged to engage the flange andbeing provided with openings communicating with the casing section above said flanges; a seat formed within the lower end of the cylinder; a valve housing base resting upon said seat; a cage engagingthe base; a ball mounted within the cage and arranged to engage the seat formed upon the base member; an an- 'nulus mounted uponthe upper end of the cylinder and bearing at its edges upon the shoulder at the upper end of the reduced casing section, said annulus having valve 'controlled openings communicating between a shoulder formed at the upper end of said section; a cylinder mounted in the section and extending through the lower end thereof; a flange formed uponthe lower end of the casing section to firmly engage the cylinder, said cylinder having its lower end enlarged to engage the flange and being provided with openings communicating with the casing section above said flange; a seat formed within the lower end ofthe cylinder; a valve housing base resting upon said seat; a. cage engaging the base; a ball mounted within the cage and arranged to engage the seat formed upon the base member; an annulus mounted upon the upper end of the cylinder and bearing atits edges upon the shoulder at the upper end of the reduced casing section,.said annulus havin valve controlled openings communicating etween the upper and lower portions of the casing; a plunger mounted for reciprocating movement within the cylinder; and a stuft' gland mounted upon the annulus 1n engagement with the tubular member to exclude liquid i'rom the cylinder' above the plunger.

I'n witness whereof I hereunto set my signature.

BENJAMIN FRANKLIN MARTY. 

